JPH0245694Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is installed at the bottom of a lattice-shaped cover called a grating, which is provided in ventilation holes such as underground power distribution line tunnels and underground holes. The present invention relates to a dust receiving member of a dust receiving device.

(Conventional technology) At the bottom of the grating provided in the ventilation hole,
A garbage receiving device is installed to receive the garbage from above that has passed through the grating, but the garbage receiving member used in conventional garbage receiving devices of this type is a wire mesh attached to a flat frame parallel to the grating. , net, etc.

(Problems to be Solved by the Invention) However, such conventional dirt receiving members have the following problems.

That is, since the wire mesh, net, etc. that directly receive the garbage are located horizontally, the received garbage tends to accumulate and cause clogging. When dirt accumulates or becomes clogged, the ventilation area decreases, which inevitably impairs ventilation effectiveness.

Moreover, since garbage receiving materials such as wire mesh and netting are stretched horizontally, their surface area, that is, the ventilation area, is limited, making it difficult to improve the ventilation effect.

(Means for Solving the Problems) This invention was made in view of the above points, and uses air permeable garbage receiving materials such as punched metal, wire mesh, netting, etc., so that the vertical cross section thereof is approximately mountain-shaped. This problem is solved by providing a formed dust receiving member.

(Function) By making the permeable garbage receiving material such as punched metal, wire mesh, or netting into a roughly mountain-shaped longitudinal section, it has slopes on both sides, so that the received garbage can be collected without accumulating on the spot. It slides down the slope and moves to both sides.

In addition, since the dirt receiving material is located diagonally, its surface area, that is, the ventilation area is larger in a limited area than that of a horizontal material.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings. FIG. 1 is a partially sectional side view, FIG. 2 is a sectional view taken along line A-A in FIG. This is a letter-shaped receiving member, and these receiving members 1 and 2 are
Further, rail receivers 5 and 6 each having an L-shaped longitudinal section are installed below one longitudinal side of the rail. Rail bodies 7 and 8 made of ultra-high molecular weight polyethylene are provided on the rail receivers 5 and 6, respectively.

Dust receiving members 9, 10, 11 are placed on the receiving members 1, 2. Each of the dust receiving members 9, 10, and 11 has the same shape and size, and the dust receiving member 9 is arranged at the center in the longitudinal direction so that the central vertical cross section is approximately chevron-shaped, as shown in FIG. A punching metal 9b is attached to the upper surface of a frame 9a which is configured to be raised. Horizontal portions 9 are provided on both sides of the dust receiving member 9 in the longitudinal direction.
A punching metal 9d is also attached to this horizontal portion 9c. Note that 9e and 9f are handles fixed to both ends of the frame 9a.

On the upper surfaces of the rail bodies 7 and 8, a sliding dust receiver 12 having a similar shape to the front dust receiving member 9 is slidably installed. This sliding dust receiver 12 also has punching metals 12c and 12d, which are dust receiving materials, attached to the sloped part 12a and the horizontal part 12b, respectively. 12e and 12f are handles.

The garbage receiving device incorporating the embodiment has the structure as described above, and as shown in FIG.
It is used by installing it at the bottom of numbers 3, 14, and 15.

According to this embodiment, the gratings 13,1
4 and 15 from above, the dirt is collected from the punching metal 9b on the slope part of the dirt receiving member 9 and the horizontal part 9.
It is received at the punching metal 9d of c. In this case, the garbage received by the punching metal 9b on the slope part slides down without accumulating and slides down to the horizontal part 9c.
Therefore, no dirt accumulates on the slope, and the punching metal 9b does not become clogged. Therefore, good ventilation conditions, ie, ventilation function, can be maintained.

Moreover, since the punched metal 9b is formed to have a substantially chevron-shaped vertical section, the surface area is larger than that of a conventional flat plate-shaped member, and the ventilation area, that is, the ventilation function is correspondingly larger.

Furthermore, when viewed from directly above, the "eyes" of the diagonally stretched punching metal 9b become smaller, so that even finer particles of dirt can be received from above.

(Effects of the invention) According to this invention, first of all, the received garbage does not accumulate on the spot but slides down to both sides, making it possible to maintain a good ventilation function. Second, the ventilation area is larger than that of a flat plate, and a better ventilation effect can be obtained. Thirdly, excellent effects such as being able to receive finer debris from above can be obtained.
Its practical effects are high.

[Brief explanation of drawings]

Each figure is a diagram relating to an embodiment, and FIG. 1 is a partially sectional side view of a garbage receiving device incorporating the embodiment, and FIG. 2 is a sectional view taken along the line A--A in FIG. 1. In addition, in the figure, 9, 10, 11 are dust receiving members, respectively.
9a is a frame, and 9b and 9d are punched metals.

Claims (1)

[Scope of utility model registration request] A dust receiving member for a ventilation hole, characterized in that a dust receiving material having air permeability, such as punching metal, wire mesh, or netting, is formed so that its vertical cross section is approximately mountain-shaped.